The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 1980
Filed:
Nov. 22, 1978
Applicant:
Inventors:
Kimio Masaie, Hakui, JP;
Yoshio Murata, Ishikawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H03H / ;
U.S. Cl.
CPC ...
333191 ; 310326 ; 310366 ;
Abstract
A piezoelectric ceramic multiple mode filter exploiting the energy trapping theory, wherein the resistance between the ground electrode and the electrode for external connection is between several ohms and several tens of ohms. In a preferred embodiment, the connection lead between the ground electrode and the electrode for external connection is designed to provide the necessary resistance.
Masaie, Kimio. (1980). Piezoelectric ceramic filter (U.S. Patent No. 4196407). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4196407
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile